Surfacing processing method of sealing element
A processing method and sealing technology, applied in metal processing equipment, welding equipment, manufacturing tools, etc., can solve the problems of low efficiency, high cost, high labor intensity, etc., to improve efficiency, ensure forming quality, and improve surfacing welding efficiency Effect
Inactive Publication Date: 2016-05-25
LIUZHOU ANLONG MACHINERY EQUIP
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[0003] The purpose of the present invention is to provide a kind of surfacing welding processing method for seals, which can solve the problems of low efficiency, high labor intensity and high cost of existing surfacing welding methods
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[0014] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
[0015] figure 1 The seal surfacing welding device shown includes a vacuum pump 1, the vacuum pump 1 is connected to one end of the vacuum pipeline 3, the other end of the vacuum pipeline 3 is connected to one end of the filter 4, and the other end of the filter 4 is connected to one end of the first pipeline 5 Connect, the other end of the first pipeline 5 is connected with one end of the first vacuum disc valve 6, the other end of the first vacuum disc valve 6 is connected with one end of the second pipeline 7, and the other end of the second pipeline 7 is connected with the vacuum chamber 11; An inductor 10 is provided in the vacuum chamber 11 . The sensor 10 is a tunnel sensor.
[0016] A gauge tube 8 is provided on the first pipeline 5 , and the gauge tube 8 is connected to a vacuum gauge 9 ; a second vacuum disc valve 13 is provided on the second ...
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Abstract
The invention discloses a surfacing processing method of a sealing element and relates to the technical field of surfacing processing of hard alloys. The surfacing processing method is realized by the following steps of firstly, forming a U-shaped groove in the sealing surface of the sealing element, wherein the depth of the U-shaped groove is 1.8 to 2mm; secondly, adopting CoCrW-1T and a quartz sand straining material 221 for mixing to form alloy powder with the particle size of 0.04 to 0.10mm; preparing the alloy powder into paste, filling the paste into the U-shaped groove, compacting, finishing and molding, and drying the paste; then filling the dried paste into a vacuum chamber; thirdly, controlling surfacing current of a surfacing device of the sealing element: the ratio of anode current to cathode current is (3:1) to (5:1), the surfacing speed is 23.3cm / min to 30cm / min, and the vacuum degree is 1.3Pa; heating for molding the filled sealing element. According to the surfacing processing method disclosed by the invention, the problems of low efficiency, great labor intensity and high cost of an existing surfacing method can be solved.
Description
technical field [0001] The invention relates to the technical field of surfacing welding of hard alloys, in particular to a vacuum induction surfacing welding processing method for sealing parts. Background technique [0002] Using flame, plasma or non-melting argon arc surfacing welding CoCrW hard alloy on metal seals to improve the corrosion resistance and wear resistance of seals has become a means to improve the service life of seals. However, using these surfacing methods not only has low efficiency and high labor intensity, but also easily produces defects such as oxidation, pores or slag inclusion, and cannot guarantee the quality of the product. Among these methods, plasma spray welding has better effect, but it uses more materials and higher cost. Contents of the invention [0003] The object of the present invention is to provide a sealing element surfacing welding processing method, which can solve the problems of low efficiency, high labor intensity and high c...
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IPC IPC(8): B23K13/01
CPCB23K13/01
Inventor 唐振荣
Owner LIUZHOU ANLONG MACHINERY EQUIP